Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1016/j.mseb.2020.114943
Ключевые слова: (co + al)-doped zno, co-doped zno, diluted oxides, hydrogenation, room temperature ferromagnetism, thin films
Аннотация: (Co + Al)-doped ZnO films have been synthesized by the RF magnetron sputtering. Films of this composition have first been obtained in mixed atmosphere of Ar + H2. High hydrogen concentration of 20–50% has been used together with high enough substrate temperature of 450 °C. The used technological conditions affected the morphology, Показать полностьюchemical composition, optical, electric, and magnetic properties of the films to an even more than in the case of Co-doped ZnO films synthesized under the same conditions and studied earlier. The films exhibit ferromagnetic behavior at room temperature with much greater magnetization and magneto-optical activity compared to the Co-doped films. At the same time, the hydrogenated films show an increase in electric conductivity in comparison with samples synthesized in the atmosphere of Ar + O2. The magnetic nature of the hydrogenated films has been associated with the defect-related mechanism. © 2020 Elsevier B.V.
Журнал: Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Выпуск журнала: Vol. 264
Номера страниц: 114943
ISSN журнала: 09215107
Издатель: Elsevier Ltd